package dao.impl;

import dao.UserDao;
import pojo.User;
import service.UserService;

import java.sql.*;
import java.util.ArrayList;
import java.util.List;

public class UserDaoImpl implements UserDao {

    @Override
    public List<User> findAll() {
        List<User> list = new ArrayList<>();
        Connection connection = null;
        PreparedStatement preparedStatement = null;
        ResultSet resultSet = null;

        try {
            Class.forName("com.mysql.cj.jdbc.Driver");

            String url = "jdbc:mysql://127.0.0.1:3306/jdbc?characterEncoding=utf-8&useSSL=false&serverTimezone=UTC";
            connection = DriverManager.getConnection(url, "root", "121628");

            String sql = "select * from user";

            preparedStatement = connection.prepareStatement(sql);

            resultSet = preparedStatement.executeQuery();


            while (resultSet.next()) {
                User user = new User();
                user.setId(resultSet.getInt("id"));
                user.setName(resultSet.getString("name"));
                user.setPass(resultSet.getString("pass"));
                list.add(user);
            }
            return list;
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        } finally {

            try {
                if (resultSet != null) {
                    resultSet.close();
                }
                if (preparedStatement != null) {
                    preparedStatement.close();
                }
                if (connection != null) {
                    connection.close();
                }

            } catch (SQLException e) {
                throw new RuntimeException(e);
            }

        }


    }
}
